Petty played in all 13 games last season and made 24 tackles, including two sacks.

But Terps fans are more likely to remember how Petty stepped in as a freshman in 2012 and played quarterback after injuries knocked out the four players ahead of him at the position.

The 235-pound Petty, who had played quarterback at Eleanor Roosevelt High School in Greenbelt, was serviceable as a passer. He had season highs of 16 completions and 208 yards passing against North Carolina in his last game at the position. Coaches appreciated his willingness to step in.

But the next season, Petty was back at linebacker and played sparingly. The hunt for more playing time presumably figured into the sophomore’s decision to transfer. Petty was unavailable for comment and his father, Rayford – who coaches at Howard – did not immediately return a phone message.

Edsall also said on Twitter that receivers Stefon Diggs and Deon Long won’t be ready for spring practice, which begins early next month. It will conclude with the red-white game on a Friday during mid-April. Dates will be announced later.

Edsall had already indicated that Diggs and Long -- who both suffered leg fractures on Oct. 19 at Wake Forest -- weren't expected to return in time for the spring but are expected to be ready for next season.

Edsall also wrote on Twitter that offensive lineman Dylan O'Connor will transfer after the semester.

Ricardo Young, a quarterback-turned-receiver who was suspended for the Military Bowl for a violation of team rules, will graduate in the spring, Edsall said. He had transferred to Maryland from New Mexico after spending his freshman year as a redshirt at Virginia Tech.